Secondary header for an implantable medical device incorporating an ISO DF4 connector and connector cavity and/or an IS4 connector and connector cavity

A secondary header connectable to an active implantable medical device (AIMD) incorporating a connector cavity having a plurality of electrical contacts, the secondary header comprising:

• a) a secondary header plug configured for mating physical and electrical insertion into an AIMD connector cavity;
• b) a secondary header connector cavity disposed within a housing and having at least one electrical contact conductively coupled to a respective at least one electrical contact on the secondary header plug;
• and
• c) an intermediate conformal section between the secondary header plug and the secondary header connector cavity housing, for placing the secondary header connector cavity housing adjacent to an exterior surface of an AIMD when the secondary header plug is placed within an AIMD connector cavity.

A secondary header that is connectable to a medical device, the secondary header comprising:

• a) at least a first connector cavity configured to receive and electrically connect to a first medical lead and a second connector cavity configured to receive and electrically connect to a second medical lead,
• b) wherein X equals four, which comprises the number of electrical contacts provided by the first medical lead permanently connected to the first connector cavity,
• c) wherein Y comprises the number of electrical contacts provided by the first medical lead that are inactive, and
• d) wherein S comprises the number of active electrical contacts provided by the second medical lead Permanently connected to the second connector cavity, such that S =Y, and S and Y are less than or equal to X and X is four;
• and
• e) a secondary header plug permanently conductively coupled to the first and second connector cavities and having four electrical contacts defined by the equation (X−Y)+S =4, wherein the secondary header plug is adapted to be positioned within and electrically coupled to a connector port of a header block of a medical device,
• f) wherein each of the four electrical contacts on the secondary header plug is either:
• i) only conductively coupled to a respective one of the X −Y electrical contacts of the first connector cavity, or
• ii) only conductively cooled to the S electrical contacts of the second connector cavity.

A secondary header that is connectable to an active implantable medical device (AIMD),the secondary header comprising:

• a) a proximal electrical contact plug having X electrical contacts and being configured for mating physical and electrical insertion into a connector cavity of an implantable medical device;
• b) a primary connector cavity having Y, which is less than X, primary electrical contact or contacts permanently conductively coupled to respective ones of the X electrical contacts of the proximal electrical contact plug;
• and
• c) at least one replacement connector cavity having N replacement electrical contact or contacts being the difference between the X electrical contacts of the proximal electrical contact plug less the Y primary electrical contact or contacts of the primary connector cavity, the N replacement contact or contacts being permanently conductively coupled to electrical contact or contacts of the proximal electrical contact plug not permanently conductively coupled to the Y primary electrical contact or contacts of the primary connector cavity,
• d) wherein each of the X electrical contacts on the proximal electrical contact plug is either:
• i) only conductively coupled to a respective one of the Y primary contacts of the primary connector cavity, or
• ii) only conductively coupled to a respective one of the N electrical contacts of the replacement connector cavity.